Messaging,Internet & Connectivity
The D900 packs comprehensive messaging features, with support for SMS and MMS messaging including messages with audio and video attachments (as supported by your service provider). Samsung's predictive text input system has never been my favorite, and while some of this is surely a matter of personal taste, I honestly think that
Sony Ericsson's implementation of T9 just blows Samsung's out of the water. I was able to compose messages with the D900, and I'm sure over time I'd get more and more used to the Samsung way, but for all of the pop-up submenus and user preference features built into the rest of the phone's operating system, you'd think the designers could have come up with a more intuitive predictive text interface. Of course, other users might find the D900's composition system more to their liking.
Support for SMTP, POP3, and IMAP4 email with attachments makes the D900 a handy tool for email on the go. The phone can be configured to access multiple email accounts, and blacklisting capabilities allow messages and emails from selected senders (or with specific subject lines) to be automatically rejected.
The D900 features support for Class 10 EDGE data transfer over GSM networks. This means I was able get the fastest Web browsing and Email speeds that T-Mobile currently supports. While Verizon's EV-DO network is much faster for data, I found T-Mobile EDGE to be sufficient for reading Email and accessing T-Zones content on the D900. The phone's built-in browser is sufficient for basic Web browsing, but (like almost any non-smartphone) not about to take the place of your PC for heavy surfing.
Note that because this phone is only available in the US as an unlocked version compatible with any GSM carrier, use of Internet services may require carrier-specific configuration. If you're somewhat tech-savvy, this won't be a problem on the D900; at least, it wasn't for me on T-Mobile's network.
A quad-band GSM radio means you'll have no trouble using the phone on any GSM carrier in the United States or abroad. USB 2.0 connectivity using the included data cable makes for quick file transfers with a personal computer, though Samsung's proprietary cable is required to connect to the phone's accessory jack. The D900 also supports Bluetooth 2.0 including file transfer, syncing (PC only), and cellular modem use.
The phone also features a removable microSD card slot that supports cards up to 2GB in size. While the D900's 80MB of internal memory will be sufficient for "phone-only" users, the addition of a 1GB or larger memory card really turns the D900 into a full-fledged portable camera and music player, as well.
The D900 also supports an optional TV out cable so you can view photos, videos, and documents from the phone on a television monitor (with sound). But wait, there's more! USB "PictBridge" and Bluetooth support allow for direct phone-to-printer photo printing with compatible printers.
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